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Deep Groove Ball Bearing
Dimension and Parameters
-
Pu
0.0075
-
Weight kg
0.001
-
Designation
W638/4-2Z
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- Principal dimensions (mm)
-
d
4
-
D
9
-
B
4
- Basic load ratings KN
-
dyc Cr
0.449
-
stc Cor
0.173
- Speed ratings rpm
-
Speed Ratings
140000
-
Limiting Speed
70000
- Dimensions mm
-
d
4
-
d1 ~
5.2
-
D1 ~
8.1
-
r 1,2 Min
0.1
- Abutment and fillet dimensions mm
-
d a Min
4.6
-
Da Max
8.4
-
r a Max
0.1
- Value
-
k r
0.015
-
fo
10